It is generally not recommended to wire a toggle switch directly to a fuse in an electrical circuit. Toggle switches are typically used to control the flow of electricity to a particular device or appliance, and wiring them directly to a fuse can create a potentially hazardous situation.
Instead of wiring a toggle switch directly to a fuse, it is generally safer to wire it to the device or appliance that you want to control. This can be done by connecting one terminal of the toggle switch to the device or appliance and the other terminal to the power source.
It's also important to keep in mind that toggle switches are designed to handle a specific amount of electrical current, and wiring them to a circuit that exceeds their rated capacity can cause overheating and other hazards. Make sure to select a toggle switch with a rating that is appropriate for the intended load and consult a qualified electrician or the National Electrical Code (NEC) for guidance on proper installation.